/* ============================================================================
   ArenaLake Login Page CSS
   ============================================================================
   Minimal styling for authentication entry point.
   Layout: Centered card in the middle of viewport
   Theme: GitHub dark theme for consistency with main dashboard
   ============================================================================ */

/* Full-screen dark background with centered card layout */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #0d1117;
    /* GitHub dark background */
    color: white;
    display: flex;
    justify-content: center;
    /* Center horizontally */
    align-items: center;
    /* Center vertically */
    height: 100vh;
    /* Full viewport height */
    margin: 0;
}

/* Login card container - centered on screen */
.card {
    background: #161b22;
    /* Dark card background */
    padding: 40px;
    border-radius: 10px;
    /* Rounded corners */
    border: 1px solid #30363d;
    /* Subtle border */
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
    /* Drop shadow */
    width: 350px;
    text-align: center;
    /* Center content */
}

/* Input field styling - username and password inputs */
input {
    width: 90%;
    padding: 12px;
    margin: 10px 0;
    border-radius: 5px;
    border: 1px solid #30363d;
    /* Dark border */
    background: #0d1117;
    /* Dark background */
    color: white;
    font-size: 14px;
}

/* Login button styling */
button {
    width: 95%;
    padding: 12px;
    background-color: #238636;
    /* GitHub green */
    color: white;
    font-weight: bold;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 15px;
    font-size: 15px;
    transition: 0.2s;
    /* Smooth hover transition */
}

button:hover {
    background-color: #2ea043;
    /* Lighter green on hover */
}

/* Page title styling */
h2 {
    margin-bottom: 5px;
    /* Spacing below title */
}